Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array Benjamin D. Braaten* Masud A. Aziz Sayan Roy Sanjay Nariyal ECE Department North.

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Presentation transcript:

Half-Power Beamwidth of a Self-Adapting Conformal 1 x 4 Microstrip Array Benjamin D. Braaten* Masud A. Aziz Sayan Roy Sanjay Nariyal ECE Department North Dakota State University Fargo, ND, USA. Neil F. Chamberlain Spacecraft Antennas Group Jet Propulsion Laboratory California Institute of Technology Pasadena, CA, USA. Dimitris E. Anagnostou ECE Department South Dakota School of Mines and Tech. Rapid City, SD, USA.

1) Introduction and Background 2) The SELFLEX Array 3) Measurement and Simulation Results 4) Discussion and Guidelines 5) Conclusion Topics

-Compact SELF-adapting FLEXible (SELFLEX) Arrays Overview: this project is investigating the possibility of embedding flexible sensors into the design of a flexible antenna array to compensate for surface curvature. Short Introduction and Background

-Antenna elements on a singly curved surface: Required phase correction [1]: [1] R. L. Haupt, Antenna Arrays: A Computational Approach, John Wiley and Sons, Ltd., Hoboken, New Jersey, 2010.

The SELFLEX Antenna

Measurement and Simulation Results Varactor Loaded TL at 2.95 GHz: SMT voltage controlled varactor phase shifter: 1)Manufactured by Skyworks Solutions, Inc. (part number: SMV ) [3]. 2)Printed on a 1.27 mm thick Rogers RT/duroid 6010 substrate (same as the array). [3] Skyworks Solutions, Inc.

Measurement and Simulation Results The sensor circuitry: Manufactured by Measurement Solutions Inc. [2] [2] Strain Measurement Solutions, Inc.,

Measurement and Simulation Results Testing the flexible strain gauge:

Measurement and Simulation Results Varactor Loaded TL controlled by the sensor circuit: Analytical computations Measured phase compensation

The SELFLEX Antenna The manufactured prototype SELFLEX array: Printed on a 1.27 mm thick Rogers RT/duroid 6010 substrate.

The prototype SELFLEX array under test: Measurement and Simulation Results

A prototype SELFLEX array under test: Measurement and Simulation Results

A prototype SELFLEX array under test: Measurement and Simulation Results

1) A short intro. and background on conformal antennas was presented. 2) The SELFLEX antenna was introduced. 3) Measurement and simulation results were compared – showing that the HPBW of a 1 x 4 microstrip array could be preserved for various bend angles (flexing). Conclusion

Thank you for listening! This research was supported by NASA ND EPSCoR, Defense Microelectronics Activity (DMEA) and the DARPA/MTO Young Faculty Award. Questions?